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News and Updates from Our Agrochemical Fate & Exposure Team

Dear Carleigh,

It's been a busy field season, but we wouldn't have it any other way. Over the last year, we have expanded our team and increased our capacity to conduct and manage complex GLP studies around the country and the world. We’re proud of all the work we accomplished in 2023 and excited for what's to come in the new year. Read on to learn more about our expanded team and our attendance at the upcoming National Alliance of Independent Crop Consultants' (NAICC) 2024 Annual Meeting.

TEAM UPDATE: Introducing Our New Service Line Leader and Staff

We're excited to congratulate Ben Brayden on his recent promotion to Service Line Leader of Stone’s Agrochemical Fate and Exposure Team. Ben has been a valuable member of the Stone team for more than a decade and has worked on a range of important studies related to off-target drift and volatility, groundwater, surface water, and ecologic risk. John Hanzas continues to serve as President and Senior Geoscientist at Stone, contributing to GLP projects as Test Facility Management and occasional field work. His main focus, however, will be the overall strategic vision and growth of Stone.

In addition, we've welcomed several new scientists to Stone over the past year who provide vital assistance across all aspects of our work.

Abby Lynn, Midwest Ag Stewardship Coordinator

Abby specializes in nutrient and pesticide monitoring, watershed evaluations, agronomy, conservation, and regulations. She has over 15 years of experience cultivating relationships in the agriculture industry. She has joined Stone to assist with regulatory studies and help develop Stone’s Midwest water quality program.

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Ana Koppi, Project Scientist

Ana joined the Stone team at the beginning of 2023, bringing five years of experience in agricultural and environmental research with her. From the start, Ana has done an incredible job supporting an impressive range of projects in the Midwest focusing on quality control, documentation, document creation, data processing, client updates, and generating reports.

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Chloe Eggert, Staff Scientist

Chloe became an integral part of the field team from day one, supporting all aspects of Stone’s GLP field studies. She has quickly become an expert in most facets of studies currently conducted by Stone, including, but not limited to, programming meteorological stations, data collection and sample management, technical report writing, and serving as principal field investigator.

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Tim Dupuis, Staff Scientist

Tim has been a vital part of Stone’s GLP field studies through a variety of tasks, including sample management, sample collection, and writing technical reports. His greatest contributions to the team have been taking on a lead role in the Stone fluorometry lab and developing study-specific systems and process improvements.

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Nick Grant, Staff Scientist

Beginning with the Stone team as an intern for two seasons, Nick didn’t miss a stride when he joined the team full-time in 2023. Nick plays an essential role on Stone’s field team, providing expertise in study map creation and plot layout, sample collection, setting up meteorological stations, and technical problem-solving for many of Stone’s project types.

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John Farrell, Staff Scientist

After gaining valuable experience in rangeland ecology and wildlife monitoring on projects in Montana, John joined the Stone team in the fall of 2023. Before even joining any field studies, John became a key part of the Stone team, working in the fluorometry lab, processing data, creating tables and maps, and generating reports.

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Julia Marcello, Staff Scientist

As a staff scientist, Julia applies her three years of experience in field and laboratory work to Stone's field team across an impressive diversity of projects. She supports the field team with sampling, data collection, analysis, and reporting.

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UPCOMING EVENT: Join Us at the 2024 NAICC Annual Meeting and AG PRO EXPO

We will be at the National Alliance of Independent Crop Consultants' (NAICC) Annual Meeting January 15-20, in San Antonio, Texas. If you're in the area, stop by our poster presentation on Tuesday, January 16, from 5 to 8 p.m., or reach out to Rachel Lightfoot or Jacob Mitchell to catch up!

View Our Poster at NAICC>>

Stone Environmental is a 100% employee-owned environmental science and engineering located in Montpelier, Vermont. Founded in 1992, our mission is to provide tools, information, and analyses to help our clients solve environmental challenges with integrity, expertise, and innovation. Learn more at

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